Warning

 

Close

Confirm Action

Are you sure you wish to do this?

Confirm Cancel
Member Login
Page Armory » 50 Cal
Site Notices
9/19/2017 7:27:10 PM
Posted: 2/6/2006 8:48:35 AM EDT
I have an ultralight BMG upper with a 24" barrel. I reload API rounds stricktly following published load data with 5010 and H50BMG powder. My rounds are communig out of the muzzel at ~2,500 fps, remarkalbly less than the ~3,000 expected from a 36" or 45" test barrel. Has anybody expiremented with loading powders other than the above industry standards that could increase velocity out of a short barrel without making an overly hot load? Would using a slightly faster burning powder help regain some of the velocity loss of the short barrel?

Link Posted: 2/12/2006 8:27:53 PM EDT
I can't answer your question but I am just curious what kind of accuracy you are getting? I ordered an Ultralite 50 with the 24 inch barrel and it should arrive tomorrow. I have been wanting a 50 for years and finally broke down and got one. I will start reloading 50 cal. hopefully by summer.
Link Posted: 2/13/2006 6:13:36 AM EDT
The accuracy is terrific. I mostly "clover" leaf the target at 100 m. I ding old, empty propane bottles at 450 m. Recoil is very mild, but watch that muzzle flip. However, again, with maximum loads I clock in right at 2500 fps with 647 grain APIs.
Link Posted: 2/13/2006 10:11:16 AM EDT
You could try some VV24N41 powder... it's slightly faster than H50BMG...

http://www.hodgdon.com/data/general/burnratechart.php

There's supposed to be a new powder available from Hodgdon: US869, that's getting good results, but I don't know where it places in the burn charts...
Link Posted: 2/13/2006 3:22:02 PM EDT
Thanks. I am also looking for you expirenced reloaders to chime in on my assumption that faster powders will increase velocity out of a short barrel. Does my hypothesis have any grounds in physics? Also, I would greatly apreciate any load data for 50 BMG loading with powders aprreciably faster than H5010 or H50BMG.

Link Posted: 2/14/2006 6:19:43 AM EDT

Originally Posted By MrBen:
You could try some VV24N41 powder... it's slightly faster than H50BMG...

http://www.hodgdon.com/data/general/burnratechart.php

There's supposed to be a new powder available from Hodgdon: US869, that's getting good results, but I don't know where it places in the burn charts...



Its posted on the Hodgdon website. The data shows US869 uses more powder so it must be slower than H50BMG.
Page Armory » 50 Cal
Top Top